Very handy for projects

It is very easy to use. You can select 5V or 3.3V on one rail with the switch, and the other rail is always 5V. Very useful in projects that need both voltage levels. A red LED indicates it is on. Mine is exactly like the one in the photo, and occupies very little space (only takes one row of the breadboard). Fits the breadboard well.

Cons:

It does not have a power on/off switch. You will have to unplug the USB cable or the DC plug.

OtherThoughts:

You will need a mini USB cable (not micro) or a DC jack. I checked both output voltages and were very accurate. Be careful not to connect both USB and DC cables, and when using the USB cable make sure the device where the supply is plugged in can deliver enough current.

Bottomline:

I recommend this item. Its very small, easy to use, ideal for small electronics projects.

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